Waste recovery of thermoplastic
continuous filamentary material

ABSTRACT

METHOD FOR RECOVERING WASTE THERMOPLASTIC FIBER OF CONTINUOUS LENGTH FILAMENTARY MATERIAL AND CONVERTING IT INTO REUSEABLE FEED STOCK AND PARTICULARLY A LARGE, OTHERWISE UNMANAGEABLE, ENTANGLED MASS OF CONTINUOUS LENGTH FILAMENTARY MATERIAL, SOME OF ALL OF WHICH BEING EITHER DRAFTED OR UNDRAFTED, WHEREIN THE CONTINUOUS LENGTH FILAMENTARY MATERIAL IS CONVERTED INTO RANDOM LENGTH STAPLE FIBER BY COMPRESSING THE ENTANGLED MASS OF WASTE THERMOPLASTIC FIBER INTO A MASS OF PREDETERMINED SIZE, CONVERTING THE COMPRESSED MASS INTO STAPLE FIBER BY CUTTING THE COMPRESSED MASS INTO PREDETERMINED SECTIONS AND THEN CUTTING THE SECTIONS INTO THE STAPLE FIBER OF RANDOM LENGHT, THE RANDOM LENGTH STAPLE FIBER IS THEN MECHANICALLY COMPACTED AND MELTED INTO MELT FLOW, AND THE MELT FLOW IS FINALLY EXTRUDED AS THE REUSEABLE FEED STOCK.

DEFENSIVE PUBLICATION UNITED STATES PATENT AND TRADEMARK OFFICE"Published at the request of the applicant or owner in accordance withthe Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of DefensivePublication applications are identified by distinctly numbered series,and are arranged chronologically. The heading of each abstract indicatesthe number of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent and Trademark Oflice makes noassertion as to the novelty of the disclosed subject matter.

PUBLISHED DECEMBER 2, 1975 9&1 O.G. 8

T941,016 WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIALRobert Hester, 2100 Montrose Ave. 37664, and Howard Paul Pierson. 120Tall Oaks Court 37663, both of Kingsport, Tenn.

Continuation of abandoned application Ser. No. 285,974, Sept. 5, 1972,which is a division of application Ser. No. 67,324, Aug. 27, 1970, nowPatent No. 3,703,347. This application Oct. 15, 1974, Ser. No. 514,528

Int. Cl. B29b 1/00; B29c 29/00; B29f 3/00 US. Cl. 264142 8 SheetsDrawing. 20 Pages Specification Method for recovering wastethermoplastic fiber of continuous length filamentary material andconverting it into reuseable feed stock and particularly a large,otherwise unmanageable, entangled mass of continuous length filamentarymaterial, some or all of which being either drafted or undrafted,wherein the continuous length filamentary material is converted intorandom length staple fiber by compressing the entangled mass of Wastethermoplastic fiber into a mass of predetermined size, converting thecompressed mass into staple fiber by cutting the compressed mass intopredetermined sections and then cutting the sections into the staplefiber of random length, the random length staple fiber is thenmechanically compacted and melted into a melt flow, and the melt flow isfinally extruded as the reuseable feed stock,

Dec. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 1 of 8 Dec. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 2 of 8 Dec. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 3 of 8 Dec. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 4 of 8 Dec. 2, 1975 R. HESTER et al. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 5 of 8 Dec. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 6 of 8 DC. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 7 of 8 DOC. 2, 1975 R. HESTER et a1. T941,016

WASTE RECOVERY OF THERMOPLASTIC CONTINUOUS FILAMENTARY MATERIAL OriginalFiled Oct. 15, 1974 Sheet 8 Of 8

